/*
XPTracker - Alternative Agile Tracking Tool
Copyright (C) 2006-2009  Stephen Starkey

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
*/
package org.xptracker.web;

import com.google.inject.Inject;
import net.sourceforge.stripes.action.*;
import net.sourceforge.stripes.security.action.Secure;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.Scriptable;
import org.xptracker.services.EngineReceiver;
import org.xptracker.services.JsEngine;

@Secure(roles="admin")
public class ScriptActionBean extends StandardActionBean {
  @Inject
  private JsEngine jsEngine;

  private String query;
  private String results;

  public String getQuery() {
    return query;
  }

  public void setQuery(String query) {
    this.query = query;
  }

  public String getResults() {
    return results;
  }

  public void setResults(String results) {
    this.results = results;
  }

  @DefaultHandler
  public Resolution showForm() {
    return new ForwardResolution("/admin/script.jsp");
  }

  @HandlesEvent("Execute")
  public Resolution executeQuery() {
    jsEngine.withEngine(new EngineReceiver() {
      public void receive(Context cx, Scriptable scope) {
        StringBuilder builder = new StringBuilder();
        scope.put("out", scope, builder);
        cx.evaluateString(scope, "function print(str) {out.append(str); }\n", null, 0, null);
        cx.evaluateString(scope, "function println(str) {print(str); print('\\n'); }\n", null, 0, null);
        cx.evaluateString(scope, query, null, 0, null);
        setResults(builder.toString());
      }
    });
    return new RedirectResolution(getClass()).flash(this);
  }
}
